Turbine.



J. A.. GRSHUN..

TURBINB.

APPLICATION FILED MAY 7, 1912.

J. A. GROSHON.

TURBINE.

APPLICATION FILED MAY 7, m12A Patented Dec. 23, 1913.

3 SHEETS-SHEET 2.

iff

J. A. GROSHON.

` TURBINE.

APPLICATION FILED MAY 7, 1912.

Lwg. Patented Dec. 23, 15H3.

3 SHEETS-SHEET 3.

UNITED sTATEs PATENT oEEIoE.

JOHN A. GROSHON, 0F NEW YORK, IN'. Y.

TURBINE.

Specication of Letters Patent.

Patented Dcc.23,1913.

Application tiled May 7, 1912. Serial No. 695,618.

` Turbine-Engines, of which the following is a specification.

The invention relates to improvements in turbine engines, and itconsists in the novel features, structure, arrangements and combinationsof parts hereinafter described, and particularly pointed out in theclaims.

The object of the invention is to provide a turbine engine of highefficiency and capable of ready manufacture. l

The engine of my invention is one in which the parts are of greatdurability and in which the rotating members are nicely balanced so asto assure ease of operation.

The engine provided by me may be used in multiple with a common shaft sothat the steam may be employed expansively, the engines, increasing insize in series to admit of the expansion of the steam from one engine toanother.

v The invention will be fully understood from the detailed descriptionhereinafter presented, reference being had to the accompanying drawings,in which:

Figure 1 is a side elevation of an engine constructed in accordance withand embodying the invention, two of the turbines being illustrated withprovision for4 the steam expanding from the smaller to the largerthereof; Fig. 2 is a detached sectional view through a portion of oneof, the rotating driving disks, with an adjacent portion of a stationaryseparating partition or plate; Fig. 3 is a vertical longitudinal sectionthrough the engine illustrated at vthe left hand side of Fig. l; Fig. 4is a partial transverse section through the same, the upper portion ofthe section being through one of the rotating disks carrying the vanesand the lower sectional portion through the' center of the maininclosing casing; Fig. 5 is an enlarged sectional view through a portionof the engine and illustrates a modified construction of the rotatingdisks carrying the vanes, and Fig. 6 is an edge view, partly in section,of the modified rotary disk and a portion of the adjacent stationaryseparating or steam plate or partition. I

In the drawings, 10, 11 designate two of the turbines arranged to drivea shaft 12,

common to both of them, and the turbine 11 being largen-than thatnumbered 10 and arranged to receive the exhaust steam leaving theturbine 10. and to be driven thereby. The turbines 10, 11 are mountedupon-a suitable base and the details of their internal construction maybe understood on reference to Figs. 2, 3 and 4, which show the turbine10.

The casings of the turbines each comprises two side-plates 14, anannular ring 15 and two partition or steam-plates 16, 17 which formbetween them an annular steamchamber 18 and at their peripheral edgesare between the edges of the ring 15 and outer edges of the side plates14, the plates 14, ring 15 and plates 16, 17 being firmly securedtogether by bolts 19. Within the side-plates 14. are formed chambers 20within which are disposed the rotary disks 21 carrying the vanes 22 andconnected with the shaft 12 to be driven. The partition disks or plates16, 17 are preferably two parts or sections,' as shown, the plate 17having a rhub 24 recessed to receive upon it the hub portion 25 of theplate 16 and said plate 16 at the outer edges of its hub portion beingannularly recessed to receive a ring 26 screwed upon the outer end ofthe hub 24 and serving to bind the hub 25 in rigid position on said hub24. 'The partition plates 16, 17 form between them, as

aforesaid, an annular steam-chamber 18 to which, with respect to theturbine 10, the steam is admitted through an inlet 27 in the ring 15.and from which the steam may escape only through an annular series ofports 28 (Fig. 2) formed therein and communieating with a series ofports 29 formed in rings 30 rigidly secured to the outer faces of thesaid plates 16, 17 by means of screws, as shownin Fig. 3. The ports 28in the plates 16, 17 extend horizontally and are not shown in Fig. 3because the presence of the screws holding the rings 30 prevents theportsfrom being illustrated therein. The ports 29 in the rings 30 arehorizontal through a portion of their length and then turnright-angularly and slant outwardly .and preferably in their outer ordischarge by screws 32 to the facing sides of the disks 21 andconcentrically with the outer edges thereof. The rings of vanes 22project inwardly and encompass the rings 30 secured to ther partitionplates 16, 17, the vanes at their inner edges being in very close relafessential respects and are reasonably close together and extend entirelyaround the rings30, and that each vane has a bucket portion 33 near therings 30 and a reversely inclined outer portion 34, the portion 34 beinginclined backwar'dly or reversely to the direction of motion of the ringof vanes and also reversely to the direction of the ports 29 in therings 30.

The action of the steam against the vanes 22 will be understood onreference to Fig. 4, wherein it will be seen that during the rotation ofthe disks 21 the vanes will be carried.

along the discharge ends of the series ot' ports 29 and receive theimpact of the steam jets passing fromsaid ports. The disks 21 are drivenby the direct impact of the steam against the vanes 22 and by thereaction occurring on the passage of the steam from between t-he vanesand itsaction against the front faces of the reversely inclined portions34 of the vanes, said portions 34 being of greater extent than thatportion of the vanes inwardly beyond the buckets 33, so as to afford amaximum surface against which the steam may act.

The rotary disks 21 correspond with one another except at their hubportions. One of the disks 21 is formed with an extended hub portion 35which receives the partition plates 16,` 17 and projects beyond the sameand has secured upon its outer end the other disk 21, whose hub portion36 passes upon the end of the hub 35 and is annularly grooved to receivethe ring nut 37 which is screwed upon the end of the hub 35 and retainsthe disk-hub 36 upon the hub 35, as

shown in Fig. 3. The manner of connect-ing the disks 21 together issubstantially the same as that employed for securing the partitionplates 16, 17 together. Suitable gaskets 38 are provided between theends of the hub24 of the plate 17 and the adjacent portions of the disks21 which abut against the ends of said hub. p

The operation of the engine will be readily understood without detailedexplanation. Steam admitted through the inlet 27 of the engine casing(l0) will till the chamber 18 between the plates 16, 17 and pass throughthe annular series of ports 28 in said plates int the ports 29 formed inthe rings 30 secured to said plates and thence the steam escaping injets from the ports 29 will strike the vanes 22 of the rotary disks 21and cause said disks to rotate, and these disks being keyed or otherwiseconnected with the shaft 12, will drive the same, the rotation of thedisks 21 and shaft 12 being continuous so long as the steam is driveninto the steam chamber 18. The steam after having acted on the vanes 22will pass into the general steam chambers 20 containing the disks 21 andescape through the outlets 39 leading therefrom and enter a main exhaustpipe 40. I prefer ,to use the turbine in series so as to employ thesteam expansively, and hence in Fig. 1 I illustrate the turbine 11 asconnected with the same shaft that is driven by the turbine 10 and alsoindicate a pipe connection 41 for leading the exhaust steam from thechambers 20 of the turbine 10 into the main steam chamber between thepartition plates of the turbine 11 so that said steam may be usedexpansively and drive the disks of the turbine 11.

The interior construction of the turbine 11 corresponds exactly withthat of` the turbine 10 and will be understoodA from Figs. 3 and 4. Theexhaust from the turbine 11 is through the pipe 42, which may, ifdesired, lead to the main steam chamber of a further turbine of largersize than the turbine 11,

the purpose being to use the steam unt-il its force has become exhaustedfor driving purposes. l

Figs. 5 and 6 illustrate a modication yof the invention, in which Idispense with the rings 30 of the engine shown in Figs. 3 and 4 andextend the steam ports 42 through the partition plates 43 to vanes 44 ofthe rotary disk 45 connected with the driving shaft in .the same waythat the left hand disk in Fig.

3 is connected with the driving shaft. The vanes 44 in Figs. 5.and 6 areformed between the body of the disk 45 and a peripheral rim or band 46thereon, said vanes being thus in the vertical planev of the disk 45instead of, as in the construction shown in Fig. 3, formed in ringssecured to the facing sides of the driving disks. The vanes 44 aresubstantially in outline like the vanes 22, and the modification shownwillV incase? lsteam-chamber and having at their outer sides concentriclaterally projecting rings and being formed with steam-ports extendingfrom said chamber into said rings and thence outwardly throughperipheral portions `ot said rings, disk-chambers atthe outer sides ofsaid plates provided with exhaust outlets for steam, a shaft to bedriven extending transversely of said chambers,

and disks on said shaft in said disk-chambers having on their innerfaces laterally projecting rings of vanes extending over said rings 'onsaid partition plates to be acted on by the steam which passes throughsaid ports, for rotating said disks and shaft.

A turbine engine comprising partition plates forming between theirfacing sides a steam-chamber and having at their outer sides concentriclaterally projecting rings 'and being formed with steam-ports 'extendingfrom said chamber'into said rings and thence outwardly throughperipheral portions of said rings, disk-chambers at the outer sides ofsaid plates provided with exhaust outlets for steam, a shaft to bedriven extending transversely oi said chambers, and disks on said shaftin said disk-chambers having on their inner faces laterally projectingrings of vanes extending over said rings on said partition plates to beacted on by the steam which passes through said ports, for rotating saiddisks and shaft,

the spaces between said vanes being closed,

at opposite vertical edges and open at their other opposite edges, andsaid vanes having bucket portions to receive the impact of thesteam-jets issuing from said ports and reversely extended outerportions.

3. A turbine engine comprising partition plates forming between them asteam-chamber and having concentric series of steamports extendingtherethrough and laterally projected hub portions one upon the other`the hub of one plate extending through and receiving the hub of theother plate and being threaded to receive a ring-nut adapted to anannular recess in said other plate, diskchambers at the outer sides ofsaid plates provided with exhaust outlets for steam, a shaft to bedriven extending transversely of said chambers, and disks on said shaftin said disk-chambers having along their peripheral portions vanes to beacted on by the .steam which enters said ports, said disks having hubportions mounted one upon the other, the hub of one disk being securedt0 said shaft and extending through the other disk and the hub portionthereof and threaded at its outer end to receive a ringnut adapted to anannular recess in said other disk.

' Signed at New York city, in the county of New York, and State of NewYork, this 4th day of May A. D. 1912.

JOHN A. GROSHON. Witnesses: i

ARTHUR MARION CHAs. C. GILL.

